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Category:   Application (Generic)  >   Microsoft .NET Vendors:   Microsoft
Microsoft .NET Core Certificate Processing Error Lets Remote Users Deny Service
SecurityTracker Alert ID:  1039787
SecurityTracker URL:  http://securitytracker.com/id/1039787
CVE Reference:   CVE-2017-11770   (Links to External Site)
Date:  Nov 14 2017
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): .NET Core 1.0, .NET Core 1.1, .NET Core 2.0
Description:   A vulnerability was reported in Microsoft .NET Core. A remote user can cause denial of service conditions on the target system.

A remote user can a send specially crafted certificate to the target .NET Core application to trigger a parsing error and cause denial of service conditions on the target application.

Bachraty Gergely reported this vulnerability.

Impact:   A remote user can cause denial of service conditions.
Solution:   The vendor has issued a fix.

The Microsoft advisories are available at:

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11770
https://github.com/dotnet/announcements/issues/44

Vendor URL:  portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11770 (Links to External Site)
Cause:   Input validation error
Underlying OS:  Windows (2008), Windows (2012), Windows (2016), Windows (7), Windows (8), Windows (10)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Nov 20 2017 (Red Hat Issues Fix) Microsoft .NET Core Certificate Processing Error Lets Remote Users Deny Service
Red Hat has issued a fix for Red Hat Enterprise Linux 7.



 Source Message Contents



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